Jeep Cherokee

 Service Manual

Speed control system » Description and operation
Vehicle speed sensor (speed control operation)

DESCRIPTION

The Vehicle Speed Sensor (VSS) is mounted to an adapter near the transmission output shaft. The sensor is driven through the adapter by a speedometer pinion gear.

OPERATION

The VSS is a pulse generator. The VSS pulse signal to the speedometer/odometer is monitored by the PCM speed control circuitry to determine vehicle speed and to maintain speed control set speed.

Speed control system

Speed control servo

Speed control solenoid circuits

Speed control switches

Brake lamp switch

Servo cable

Vacuum reservoir

Vehicle speed sensor (speed control operation)